Katrin Child: Steve Vai Flashmob - Katrin Child (rehearsal, 30 July) on July 31, 2016 Get link Facebook Twitter Pinterest Email Other Apps The second day of rehearsals Steve Vai went flashmob! E e e! Annealing at 100 guitars and cellos led by Maestro already quite close! Steve Vai Flashmob - Katrin Child (rehearsal, 30 July)